Cecil County Public Schools spokeswoman Kelly Keeton told WDEL Radio that several staff members had trouble breathing Friday at Gilpin Manor Elementary School. The five staff members were taken to Union Hospital as a precaution.

Hazardous materials crews were called to the school and ventilated the area.

No children were involved in the incident. Officials say the school day went on as usual, but an emergency message was sent to parents to make them aware of the incident.